Web-printing machine.



Patented- Oct. 5, 1915. 2 SHEETS-SHEETI wwmmsgcs, 0. 17%.

0. ROESEN.

WEB PRINTING MACHINE. APPLICATION FILED NOV. 20. I9I4.

Patented Oct. 5, 1915.

2 SHEETS-SHEET 2.

VW NESSES.

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OSCAR ROESEN, OF NEW YORK, N. Y., ASSIGNOR TO B. HOE AND CO., OF NEWYORK,

N. Y., A COBPORATIONOF NEW YORK. I

WEB-PRINTING MACHINE.

Specification of Letters Patent.

Patented Oct. 5, 1915.

Application filed November 20, 1914. Serial No. 873,079.

This invention relates to certain improvements in web printing machines.

In web printing machines, it is usual'to print and perfect oneimpression on each side of two webs, the two perfected webs being then,if desired, further manipulated in different ways to produce variousproducts. It is also frequently desirable in web printing to print andperfect one web having two impressions on each side, this beingparticularly desirable in color printing. To obtain the best resultswhen one web is to be given two impressions on one side and perfected,it is desirable, to efiect proper registry and for other reasons, thatthe two impressions be made as close together as possible. usualarrangement adopted for this is'to employ two sets of printingmechanisms, one

for printing each side of the web, so as to perfect the latter, eachprinting mechanism employing-two plate cylinders and an. impressioncylinder, the impression cylinder being located between the platecylinders, so

- were utilized for printing and perfecting one that a very shortinterval shall elapse b.e-

tween the two impressions on the same side of the web. With a machineconstructed to effect this, however, it is not possible to print oneimpression on each side of two webs. To make it possible to print andperfect two webs with one impression on each side, and

one perfected web with two impressions on each side, a machine has beenprovided-employing four separate printing couples, each including a formmember and an impression member. When one impression is to be made onone side of two webs, two of these couples web, and the other two forprinting and perfecting the other web. When, however, in this machine,one web was to be printed with two impressions on one side andperfected,

' the web had to be led through all four of the couples and sincenecessarily thes'e couples were spaced apart, aconsiderable intervalelapsed between the first and second im- The pressions on the same'sideof the web, with consequent tendency to non-register. This arrangement,furthermore, had other disadvantages.

It is the object of the present invention to produce a web printingmachine in which the printing elements are so arranged that two webs canbe printed and perfected with one impression on one side, and at thesame time one web can be printed and perfected with two impressions onthe same side, with a very small interval between the two impressions,so that accurate registry is se cured.

A further object of the invention is to produce a printing mechanism foreffecting these results which shall be simple and compact.

ticular machine which has been selected to.

illustrate the invention is a rotary machine, in which the form and 'imression members are cylinders, although, if desired, the invention maybe employed in machines in which all the printing elements may not becyliners. M

Referring first to the construction illustrated in Fig. 2, there areindicated two sets of printing mechanisms A, B, which are or may beduplicates of each other. Each of these sets in the particularconstruction illustrated includes form cylinders 1 9 these cylindersbeing preferably arranged substantially vertically of each other. Theink is supplied to these form cylinders from ink reservoirs 3, 4 throughthe usual train of ink distributing rolls 5, 6. Cooperating with the.form-cylinders, is an impression cylinder 7, the form cylinders beingarranged so as to have quick successive printingrelation with thiscylinder 7, being mounted to effect this in the particular com- Amechanism for carrying out the inveni 't1on is diagrammaticallyillustrated in the struction illustrated on the same side of the axis ofcylinder 7. Two form cylinders and the impression cylinder arefurthermore arranged so that their printing relations may be changed, sothat in one position the form cylinders are both in printing relationwith the impression cylinder, and, in

another position, one, only of the form cylinders is in printingrelation with the impression cylinder. This change of the printingrelation of these cylinders maybe effected in various ways, but intheparticular construction illustrated the impression cylinder 7 and formcylinder 2 are-arranged so that they may be thrown into and outofprinting relation with each other. In thebest constructions, and asillustrated, the impression cylinder 7 will be mounted so that it canbemoved or tripped out of printing relation with the form cylinder 2,continumg, however, in printing relation with form cylinder 1. 'Anysuitable mechanism may be employed for thus moving or ,tripping thecylinder and, as many such mechanisms are 'known'in theart, which may beemployed,

none has been illustrated because unnecessary for an understanding ofthe invention.

I The second set of printing mechanism which may be used is indicated bythe letter Band includes two -'form members illustrated as cylinders 9,10 inked from suitable ink res- I ervoirs 11, 12, through the usualchain of distributing rolls 13, 1-1. Cooperating with form'cylinders 9,10, which, as shown, are arranged preferably substantially vertically ofeach other, is an impression cylinder 15. Like the cylinders in set A,the form cylinders 9, 10 are arranged so as to have quick 'successiveprinting relation with impression cylinder 15, being mounted for thispurpose preferably as' shown on the same side of the axis of theimpression cylinder.

These form cylindersvand impression cylinders, furthermore, are arrangedso that their printing relation may be changed, the cylinders beingmounted so that the impression cylinder may, in one position, be inprintmg relation with both form cylinders, and,

in another position, be in printing relation" with but one of the formcylinders. While this change in the printing relation of the cylindersmay be effected in various ways, preferably impression cylinder 15 will.be

F a mounted so-that it can be moved or tripped ,out of printing relationwith one of the "form cylinders, it being tripped out of vprintingrelation in the particular construction illustrated with form cylinder 9through suitable tripping mechanism, not illustrated, the position ofthe cylinder,

, when so moved, being indicated in the drawings by dotted lines. Inaccordance with the invention, and for purposes which will hereinafterappear, two other impression cylinders 16, 17 are provided which may,"

through suitable tripping mechanism, not

. shown, be 'brought into and out of printing relation with the formcylinders 2, 9.

In the construction illustrated in Fig. 2, the web W is to be printedwith two impressions on one side', as, for instance, in two colors andperfected. When this is to be done, the cylinders 16, 17 occupy theposition shown in full lines in Fig. 2, that is, they have been trippedout of printing relation with the form cylinders 2, 9, the cyl- Iinders' 7, 15 having been tripped into the position shown inffull linesin the figure, so that the cylinder 7, is in printing relation with theform cylinders 1, 2, and the cylinder 15 is in printing relation withthe form cylinders 9, 10. The web W is led from the web-roll through theusual drawoff rolls 18 around guide-rolls 19 between the form cylinder 1and the impression cylinder 7, where it is given its first impres-'.sion. It then continues between impression cylinder. '7 and formcylinder 2, where it 1s tween cylinders 15, 9, where the secondimpression is given, the arrangement of these cylindersbeing the same asin mechanism A, so that a very short interval elapses betweenimpression. If desired, an offset web 21 may be provided passing over aguide-roll 22 and meeting the printed web at guideroll 20, the ofi'setmember being rewound on a rewinding-roll 22. After the web has beengiven its second or perfected impression, it may be led over guide-rolls23, 23,

to a cutting and folding mechanism, or may be otherwisemanipula-ted asdesired.

With the construction thus far described, it will be seen that the webis printed and perfected with two impressions on one side, theseimpressions being so produced as to allow of accurate registry.

When it is desired to print and perfect two webs with one impression oneach side,

the machine illustrated in Fig. 2 isradjusted .so that the parts are inthe position shown in Fig. 1. In this arrangement the impressioncylinders 16, 17, are tripped so as to be in printing relation with thecylinders 2, 9, and the cylinders 7, 15, are tripped out of printingrelation with the cylinders 2, 9, but continue in printing relation withcylinders 1, 10. With this arrangement of parts and simple adjustment ofthe impression cylinders, two webs can be printed and perfected with oneimpression on each side, as follows: Web W is led from a suitablewebroll between the printing and impression cylinders 2, 16, where it isprinted on one side, through a printing couple 9, 17, where it isperfected, and over guide-rolls 23 out of the machine. Web W is led froma suitable web-roll through impression cylinders 1, 7, and to andthrough cylinders 15, 10, where it is perfected, and out of the machine,

.and may be led with web W, if desired, to

any mechanism for further manipulation.

The cylinders of each set may be driven in any suitable manner. In theparticular construction illustrated, the cylinders of mechanism A, andthe cylinders of mechanism B are driven from cylinders 1 and 10. When,as shown, cylinders 1 and 10 are driving cylinders, reversingmechanisms, as pinions 24, shown in dotted lines are provided, whichreverses the direction of rotation of cylinders 2 and 9. These pinions24 are mounted so that they may be thrown out of gear with impressioncylinder 7 through any suitable construction, not shown, they being sothrown out when the machine is to be used for printing two impressionson the same side of one web, as illustrated in Fig. 2. Certain changesand variations may be made in the specific construction shown anddescribed, without departing from the in-.

vention, and the invention furthermore may be employed in machines inwhich all the printing elements are not cylinders and the invention isnot to be restricted to the exact arrangement shown and described.

What is claimed is:

1. In a printing machine, the combination of a set of printing couplesincluding form members and impression members arranged so that two formmembers may have quick successive printing relation with one impressionmember, a second set of printing couples including form members andimpression members arranged so that two form members may have quicksuccessive printing relation with oneimpression member, and means forchanging the printing relation of the members of each set so that in oneposition a web may be given multiple impressions on one side in one setand perfected with multiple impressions in the other set, and in anotherposition two webs may each be printed with one impression in one set andperfected in the other.

2. In a printing machine, the combination of a set of rotary printingcouples including form cylinders and impression cylinders arranged sothat two form cylinders may have quick successive printing relation withone impression cylinder, a second set of printing couples including formcylinders and impression cylinders arranged so that two form cylindersmay have quick successive printing relation with one impressioncylinder, and means for changing the printing relation of the cylindersof each set so that in one position a web may be given multipleimpressions on one side in one set and perfected with multipleimpressions in the other set, and in another position two webs may eachbe printed with one impression in one set and perfected in the other.

3. In a. printing machine, the combination of a set 'of rotary printingcouples including two form cylinders, an impression cylinder, the twoform cylinders being located on the same side of the axis of theimpression cylinder so as to have quick successive printing relationtherewith, a second couples including two form cylinders, an impressioncylinder, the two form cylinders of the second set being located on thesame side of the axis of the impression cylinder so as tohave quicksuccessive printing relation therewith, and a second impression cylinderin the second set cooperating with one of the form cylinders, bothimpression cylinders of the second set being movable relatively to theform cylinders.

4. In a printing machine, the combination of a set of rotary printingcouples including two form cylinders, an impression cylinder, the twoform cylinders being located on the same side of the axis of theimpression cylinder so as to have quick successive printing relationtherewith, a second impression cylinder cooperating with one of theformcylinders, both the impression cylinders being movable relatively to theform cylinders, a second set of rotary printing couples including twoform cylinders, an impression cylinder, the two form cylinders of thesecond set being located on the same side of the axis of the impressioncylinder so as to have quick successive printing relation therewith, asecond impression cylinder in the second set cooperating with one of theform cylinders, both impression cylinders of I witnesses.

' OSCAR ROESEN. Witnesses RICHARD KELLY,

HAROLD MoR'roN TILLINGHAST.

